Giant dielectric response and polaronic hopping in Al-substituted A5/3Sr1/3NiO4 (A=La, Nd) ceramics
Source abstract
Abstract
The structures and dielectric properties of A5/3Sr1/3Ni1−xAlxO4 (A=La, Nd; x=0.2, 0.3) ceramics were investigated. The single tetragonal phases were found in all ceramics. Giant dielectric responses were observed in these ceramics, and only one dielectric relaxation was found on the curve of the temperature dependence of dielectric constant. After comparing the activation energies of dielectric relaxation and electrical conduction, the giant dielectric response should be attributed to the adiabatic small polaronic hopping process in these ceramics.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Dielectric properties of ceramics · Ferroelectric and Piezoelectric Materials · Multiferroics and related materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (19)
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